Deadly Nightshade may refer to:
- The enemy from Final Fantasy XII.
- The enemy from Final Fantasy Tactics A2: Grimoire of the Rift.
- The enemy from Crystal Defenders.
- The boss from Final Fantasy Brave Exvius.
atropa belladonna, a perennial herbaceous plant whose foliage and berries are extremely toxic and cause a bizarre delirium and hallucinations. Witches were believed to use a mixture of deadly nightshade, opium poppy and other plants in making flying ointment.Deadly nightshade is the common name for